ok, let's see.
In the first stacktrace I see this:
at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.getParentResourceType(Resourc eResolverImpl.java:1216)
at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.isResourceType(ResourceResolv erImpl.java:1239)
at com.adobe.cq.social.scf.core.resourcetree.ResourceTypeTree$RTree.insert(ResourceTypeTree. java:108)
at com.adobe.cq.social.scf.core.resourcetree.ResourceTypeTree$RTree.put(ResourceTypeTree.java:96)
and in the second one
at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.getParentResourceType(Resourc eResolverImpl.java:1205)
at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.isResourceType(ResourceResolv erImpl.java:1233)
at org.apache.sling.api.resource.AbstractResource.isResourceType(AbstractResource.java:121)
at org.apache.sling.api.resource.ResourceWrapper.isResourceType(ResourceWrapper.java:171)
at org.apache.sling.i18n.impl.JcrResourceBundleProvider.isDictionaryResource(JcrResourceBund leProvider.java:240)
at org.apache.sling.i18n.impl.JcrResourceBundleProvider.onChange(JcrResourceBundleProvider.j ava:220)
at org.apache.sling.resourceresolver.impl.observation.BasicObservationReporter.reportChanges (BasicObservationReporter.java:211)
at org.apache.sling.resourceresolver.impl.observation.BasicObservationReporter.reportChanges (BasicObservationReporter.java:189)
at org.apache.sling.resourceresolver.impl.providers.ResourceProviderTracker.postResourceProviderChange(ResourceProviderTracker.java:371)
at org.apache.sling.resourceresolver.impl.providers.ResourceProviderTracker.access$400(Resou rceProviderTracker.java:59)
at org.apache.sling.resourceresolver.impl.providers.ResourceProviderTracker$2.run(ResourcePr oviderTracker.java:478)
at java.lang.Thread.run(Thread.java:748)
For me it does not seem that your code is involved here. It's all Sling code, Oak code or product code. Please report this to Adobe support.